TY  - RPRT
TI  - A FORTRAN program for determining an empirical expression or a quantity measured at combinations of several levels of each of two variables 
AU  - Steel, Mary Nan
PY  - 1965
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 259
DO  - 10.6028/NBS.TN.259
ER  -